i'm looking to get my car tuned(dohc zc), and i'm trying to get a good ideal of where i should get my 2-step set at. so what would be the best rpm range for the 2-step. i have heard many people tell me 3200 to 3500 rpm. also what would be safe redline on a stock motor when getting the motor tuned, would 7500 be o.k when tuned?